Objective Online social support provides a way to positively influence depression sufferers. In the present study, we aim to analyze how social support in Chinese online depression communities is communicated through the lens of deliberate metaphor theory (DMT) to deepen the understanding of the under-researched complicated, emotionally laden, and culture-related concepts of this experience. Methods We collected data (n = 3546 comments) from the Warm Supporting section of the Depression Super Topic, a major Chinese online depression community on Weibo. The data were analyzed using a metaphorical analysis with the Metaphor Identification Procedure Vrije Universiteit and a thematic analysis. Results Our findings identify two themes: deliberate metaphors (DMs) of depression and DMs of social environment for depression sufferers. The former conceptualizes future expectations without depression (as rosy images; victorious battles; the beaten black dog); disorder (as subtle objects; subjective initiative events); depression sufferers (as valuable objects; important roles); and present life with depression (as optional events; spiritual practices; fragile objects). The latter conceptualizes social connection (as solid objects; nonessentials); individuals in the social environment (as energetic objects; vicious roles); and prejudice (as colored objects). Conclusions The findings suggest that DMs as important online social support resources, helping to express empathy and normalize depression with more common-sense, and non-judgmental concepts. Additionally, in DMs, Chinese netizens navigate the intricate intersection of medical and moral perspectives on depression and its recovery, leveraging both aspects to offer comprehensive social support. “Confucian-based” elements are embedded in culture-related social support expressions in DMs. In practice, our findings contribute to tailored and appropriate health interventions for depression.